Walther Bothe

<html> <head> <title>Walther Bothe</title> <meta name="googlebot" content="noodp"> <meta name="robots" content="noodp"> <link rel="apple-touch-icon-precomposed" href="/silly-nndb-icon.png" /><style type="text/css">  </style></head> <body bgcolor=#ffffff> <center> <table cellpadding=0 cellspacing=0 border=0><tr><td valign=top><table width=550 cellpadding=0 cellspacing=0><tr><td bgcolor=white><table width="100%" cellpadding="4" cellspacing="0" background="/nndb.gif"> <tr> <td rowspan="2" align="left" valign="top"><a href="http://www.nndb.com/"><img src="/title.gif" width="260" height="50" border=0 alt="NNDB"></a></td> <td><table width="100%" cellspacing="0" cellpadding="6"> <tr align="center"> <td width="25%" nowrap>This is a beta version of NNDB</td> </tr> </table></td> </tr> <tr> <td align="right" valign="middle"> <form action="http://search.nndb.com/search/nndb.cgi" method="get"> <input type="hidden" name="nndb" value="1"></input> Search: <select name="omenu"> <option value="unspecified" selected>All Names</option> <option value="living">Living people</option> <option value="dead">Dead people</option> <option value="bands">Band Names</option> <option value="books">Book Titles</option> <option value="movies">Movie Titles</option> <option value="fulltext">Full Text</option> </select> for <input name="query" value="" size=24 maxlength=96> <input type=submit value="Search"> </form></td> </tr> </table>        </td></tr><tr><td bgcolor=red height=2></td></tr><map name=fool><area coords="102,0,240,14" href="/people/523/000071310/bibliography/" alt="bibliography"></map><tr bgcolor=F0F0F0><td bgcolor=F0F0F0 style="padding: 0px 15px 15px 15px;"><img src="/red-profile-2.gif" align="right" height=15 width=240 border=0 usemap=#fool> <table cellpadding=0 cellspacing=0 width=100%><tr><td bgcolor=F0F0F0>Walther Bothe<img src="bothe1-sized.jpg" height=279 width=229 align=right hspace=10 vspace=10 alt="Walther Bothe">AKA Walther Wilhelm Georg BotheBorn: <a href="/lists/525/000106207/" class=proflink>8-Jan</a>-<a href="/lists/890/000105575/" class=proflink>1891</a> Birthplace: <a href="/geo/721/000082475/" class=proflink>Oranienburg, Germany</a> Died: <a href="/lists/922/000106604/" class=proflink>8-Feb</a>-<a href="/lists/467/000106149/" class=proflink>1957</a> Location of death: <a href="/geo/698/000082452/" class=proflink>Heidelberg, Germany</a> Cause of death: unspecified Gender: Male Race or Ethnicity: White Sexual orientation: Straight Occupation: <a href="/lists/629/000096341/" class=proflink>Physicist</a>Nationality: Germany Executive summary: Coincidence methodMilitary service: German Army, 1914-20German physicist Walther Bothe (pronounced BOH-tuh) studied under <a href="/people/229/000058055/">Max Planck</a>, and worked early in his career under <a href="/people/123/000099823/">Hans Geiger</a>. Beginning in 1924 he used <a href="/people/968/000055803/">Compton</a> scattering and two of Geiger's particle counters to develop the coincidence method, a system for tracking collisions between electrons and electromagnetic quanta, and identifying and studying individual atomic and nuclear processes. His work showed that cosmic rays consist of massive particles, not merely photons, and the coincidence method became an important tool in nuclear physics. His 1930 alpha ray bombardment study provided the clues that <a href="/people/728/000099431/">James Chadwick</a> used to discover the neutron two years later. He also developed the transport theory of neutrons in 1941. He shared the 1954 Nobel Prize for Physics with <a href="/people/507/000071294/">Max Born</a>. During the First World War, Bothe was an Army gunner, and he was captured and held prisoner for a year in Siberia, where he met his future wife. During the Second World War he oversaw construction of Germany's first cyclotron, which went on-line in 1943. He also worked on the Fuhrer's effort to design an atomic bomb, and historians have generally concluded that an error by Bothe in calculating graphite's ability to absorb neutrons was a key factor in the failure of this project.Father: Fritz Bothe Mother: Charlotte Hartung Bothe Wife: Barbara Below (m. 1920, d. 1955, two children)     University: <a href="/edu/634/000079397/">PhD Physics, University of Berlin (1908-12)</a>     Scholar: Imperial Physical Technical Institute, Berlin (1913-30)     Teacher: <a href="/edu/634/000079397/">Physics, University of Berlin (1925-29)</a>     Professor: <a href="/edu/634/000079397/">Physics, University of Berlin (1929-30)</a>     Professor: <a href="/edu/628/000071415/">Physics, University of Giessen (1930-32)</a>     Professor: <a href="/edu/633/000071420/">Physics, University of Heidelberg (1932-57)</a>     Administrator: <a href="/edu/633/000071420/">Institute of Physics, University of Heidelberg (1932-57)</a>     <a href="/honors/201/000067997/">Nobel Prize for Physics</a> 1954 (with <a href="/people/507/000071294/">Max Born</a>)     <a href="/honors/513/000071300/">Max Planck Medal</a> 1953     <a href="/honors/642/000052486/">Knighthood</a> Order of Merit for Science and the Arts     <a href="/event/114/000164619/">Taken Prisoner of War</a> in Russian Siberia (1919-20)     <a href="/lists/644/000044512/">German Ancestry</a> Author of books: Nuclear Physics and Cosmic Rays (<tt>1948</tt>, physics; three volumes) Atlas of Cloud-Chamber Figures (<tt>1940</tt>, nonfiction) Do you know something we don't? <a href="http://commentary.nndb.com/submit/feedback/?id=71310" rel="nofollow">Submit a correction or make a comment about this profile</a> Copyright ©2019 Soylent Communications </td></tr></table> </td></tr> </table> </td> <td width=180 align="center" valign="top" style="padding: 0px 0px 8px 25px;"></td></tr> </table> </center> </body> </html>

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Walther Bothe